/* Hide the label div for CheckFields, this is only filled with a '&nbsp;' */
div.mw-htmlform-field-HTMLCheckField div.mw-label {
    display: none;
}

/* Move the final submit button 5px away from the rest of the form content */
span.mw-htmlform-submit-buttons input.mw-htmlform-submit {
    margin-top: 5px;
}